Cylinder grinder



.UCL y 19%0 H. Kosmos CYLINDER GRINDER Filed Jan. 28,* 2 smmsfsneeh 1 llll .Il

ITW

` IVNVENTOR.. JHeiz/'Sy[13.577205 ATTORNEY.

W1 TNESS:

cte a 1920 H. KOSMOS CYLINDER GRINDER4 Filed Jan. 28|. 1921- 2 Sheets-Sheenu 2 Wl TNESS:

INVENTOR.

re/zr/fo 5772 0 ATTORNEY.

of Illinois,

Patente? HENRY Kosmos, 'or cnicneo, ILLiNoIs.

CYLINDER caminan.

application fixedl January as', 1921. seriai Hamaca?.

To all 'wlw/m. it may concern.'

Be it known that'I,

citizen HENRY Kosmos, a

of the United States, residi at Chicago, in the county of 'Cook and tate have invented new and useful Y Improvements in Cylinder Grinders, of

which This the following is a speciiication.

invention relates .to grinding machines and :an object of the invention is to 10 provide a device particularly designed for grindin such as' tion en g cylindrical or circular surf-aces,`

the cylinders of an internal combus- Ano er obect of this invention is to provide a grin er which includesa carrier structure rotatable :for revolving a grindin wheel about a circular surface to be groun and also carries grinding wheel Iduring its movement over means for rotating the the surface to be ground.

A further ob'ect of this iiention is to provide means sition o ative to the axis or adjusting e radial pof the axis of the grinding wheel relof the carrier for regulating the circumference of the circular path in which th e grinding wheel travels and also to provide ia gauge structure 'by means of whici grin 1n A sti to provide a very accurate adjustment of the g wheel ma be had.

ll further o ject of this invention is grinding machine as specified which embodies, preferably, an electric motor for ably at (grinding wheel, preferrotating the speed relative to the an increase rotation of the carrier and also to provide a novel construction for permitting the transmitting of electric energizing current to the motor, the said structure designed to maintain op erative energizing connection to the motor at .all adjustments of the grinding wheelv and during all movements of the grindin g wheel and carrier.

Other objectsof the invention will appear in the following detailed descri tion and in the accompanying drawings w erein:

Fig. 1 is a side elevation of the improved grinding machine.

Fig. 2 is a machine,

Fig. 3 is an end elevation of the grinding machine showing the carrying spindle in section.

grinding wheel 4 is a detail section througha part grinding'machine illustrating .the

'slightly enlarged for .the ends of .the

clearly shown in Figures 1, 2' and lofi-the plan of the improved grinding Fig. 7 is a detail view, partly in section,"

ofthe mechanism for adjusting the position of the grinding wheel.

Fig.- 8 is a detail section illustratin a part of the gauge for accurately regulating the adjustment of the 'nden Fig. 9 is a detail view of a part of the gauge which co-acts with that vpart illustrated in Fig. 8 of the drawing, Ashowing `it the pu of illustration. I Referring more particularly to the drawing, the improved grinding'machine comprises a supporting structure 1 provided with a dovetail reces 2' to facilitate its mounting upon the table of any desired type of machine employed in grinding. v'llhe support 1 forms a housing vfor a carrier sleeve 3 upon which 4sleeve is mounted a worm gear 4, preferably intermediate the ends yof the sleeve 3 and the housing portion of vfromany suitable .outside power' Source as indicate at 7 in Fig. 1 ofthe drawings.

The sleeve 3 ends and receives therein the threaded plugs or portions 8 of the end 4blocks 9. The portions o the end blocks -9 which overhang the perimeters of the plugs 8 engage against sleeve 3 and housing 1 as drawings. l

The block 9F ait one end of the carrier sleeve 3 is provided with adovetail 10 extending diametrically thereacross and this dovetail seats in the dovetail slot 11 in a movable block 12. The movable block 12 rotatably su rts the spindle 14 upon which a grin ing wheel 15, of any I Construction is mounted. The s aft 14 extends longitudinally through the carrying sleeve 3 and forms the central or power shaft of an electric motor 16 which is sup- ;wr d'by the block 9 .locatednat the end A worin 6 meshes with the worin" is internally threaded at its` approved of the sleeve-3 op lit ' drawin which com of the osito the block 9a. rllhe motor l16 has a bloc 17 formed upon the casing thereof which is provided with a dovetail recess 18 in which the dovetail 19 engages. .'lllhe dovetail 19 extends diametrically across the block 9b and parallel with the dovetail so as to permit aligning movement of the blocks 12 and 17.

The block 12 has an adjusting screw 20 connected thereto which seats in the internally threaded sleeve 21. rll"he sleeve 21 has a worm gear 22 mounted thereon with which a worm 23 meshes. The worm 23 is carried hy a shaft 24 upon which an operating crank handle 25 is mounted so that by manual rotation of the shaft 24 the sleeve 21 may be rotated, and since this sleeve is heldJ against longitudinal movement, its rotation will feed the adjusting screw 20 either into or outof the sleeye 21, depending upon the direction of rotation of the latter, which will move the block 12 towards or away from the axis of the carrier sleeve 3. The shaft 24 extends longitudinally through the sleeve 3 and has a second worm 26 mounted`thereon which meshes with a 4worm gear 27 carried by a sleeve 28. rlhe sleeve 28 is internally-threaded and receives therein adjustin screw 2.9 which is connected to the block 1 to permit synchronous adjusting movement of' the blocks 12 and {,7 and corseuly maintaining proper a ignment o t e ring surfaces in these blocks for the shaft 14.

A. balancing weight or block 30 is mounted .on the dovetail 10 and is adjusted synchronously with the block 12, it being provided with. an internally threaded bore 31 which lengages the external threads on the sleeve 21.. Accurate adjustment, of the shaft 14 and consequently of is permitted -b means'of the'gauge struc-l ture illustrate in Figures 7 8 and 9 ofthe rises a disc 33 mounted ich bracket is attached to the block 9 and supports the shaft 24 as .well as the disc 33. The disc 33 is rovided with micrometer graduations 35 w ich are adated to on "1 disc 37. The disc 37 is pinned to the shaft 24 by an ordinary pin 38 and-ithas perimeter beveled as clearly shown in Fig. of the drawings, to permit accurate alignmg ofthe graduations 36 with any one graduations on thd disc 33.

A.. suitable stay bolt 39 extends throu h the carrier sleeve 3 and is vconnected to th bolts 9 and 9i for increasing the rigidity of upon a racket 34, w

- the structure and the'blocks 9a and 9" provided with substantially oval shaped cutout lportions 40 through which the shaft 14 extends, the said cutout portions permitting ad ustment of the shaft towards or from the xis 'of the cari-'1er sleeve by the mechanism previously descrilnad.` @w to the fact that the motor 16 roh motor the grinding wheel` `15 15 is adjusted, by

cO-act with the graduations 36` atraco@ tates or revolves during the rotation of the carrier sleeve 3 a novel form of contact structure, to permit energizing of the motor, is provided, this contact structure which is specifically illustrated in Figures 5 'and 6 of the drawing comprises rings 41 and 42 which are constructed of suitable electric conducting material and which are connected by a ring 43 of insulating material. rThe ring 41 is attached to an annular flange 44 formed on the housing 45 of the 16 and is suitably insulated therefrom while the ring 42 is mounted upon the shaft 24 being suitably insulated therefrom. The rings 41' and 42 are connected to the binding posts 46 and 47 of the motor 16 as shown at 48,

Brushes 49 and 50 engage the rings 41 and 42 respectively and are yieldably maintained in engagement with the outer sides of these rings by springs 51. 'lhe brushes 49 and 50 are mounted in sleeves 52 of insulation which are carried by an arm 53. The arm 53 is provided with alongitudinal slot 54 which receives therethrough the reduced portion 55 of the connecting arm 56. head 57 is mounted on the arm 56 outwardly of the reduced portion 55 and engagesragainst the outer surface of the arm 53 as clearly shown in Fig. 6 of the. drawing for preventing lateral movement of the arm 53I od -he arm. 56. The bracing arm 56 is attached in any suitable manner to the support 1 and the provision of theslot 54 permits movement of the arm 53 relative to the arm 56 and the support 1 during movement GIID of the motor 16 towards or from the axis of j the carrying `sleeve 3. Electric contacting wires 58 and 59 are connected to the brushes 49 and 50 respectively and provide means for contacting an electric energizing current to the motor 16. ll'n operation, the improved grinding machine, just described, is mounted upona suitable carrying table, and the grinding wheel means of the cranl: handle 25' and the shaft 24, until the radius of the circle in which it will travel', by rotation. of the carrier sleeve 3, isset to properly engage the circular surface to be ground, such as the `inner wall of a cylinder of an internal combustion engine. The power is then supplied to the grind'ng machine which rotates the vcarrier sleeve 3 and consequently revolves the grinding wheel 5 about the axis of the carrier sleeve and the grinding wheel 15 is rotated upon its axis by rotation ofthe shaft 14 from the. motor 16 and thus the rotating grinding wheel is moved in a the surface to 'be ground, resulting in even and accurate grinding of the said surface.

llt is -preferable to provide a motor 16 which will rotate the grindin wheel 15' at t much greater speed than-these'd of reta tion of the carrier sleeve 3, the speed lof which is reduced from the speed of the power shaft or supplied by the proportions of the Worm gear 4 and Worm 6.

It is, of course, to be understood that the invention may be constructed in various other manners and the parts associated in different relations and, therefore, I do not des're to be limited in any manner except as set forth in the claims hereunto appended.

Having thus described my invention what I claim is:

1. In a grinder, a carrier, means for rotating said carrier, a grinding wheel carried by said carrier and movable therewith for moving the grinding wheel over a circular surface to be ground, and adjustable means supporting said grinding wheel for moving it radially from or towards the axis of rotation of the carrier, a motor for rotating said grinding wheel carried b said carrier, spaced contact rings carrie by said motor, contact brushes engaging said rings, and adjustable means supporting said brushes to maintain operative engagement of the brushes and rings upon operation of said first named adjustable means.

2. Ina grinder, a carrier sleeve, means for rotating said sleeve, blocks adjustable radially ofthe axis of said sleeve and adapted to be revolved about theaxis of the sleeve upon rotation thereof, a shaft carried by said blocks, a grinding wheel on one end of said shaft, a motor upon the opposite end of said shaft for rotating said grinding wheel independently of rotation of said sleeve, spaced Contact rings carried by. said motor, Contact brushes engaging said rings, adjustable means supporting said brushes to maintain operative engagement of the brushes and rings Yupon adjustment of said blocks, and means connected to said blocks for adjusting the position of said shaft radiallyiof the axis of saidl carrier sleeve for regulating the radius of the circle in whichthe shaft and grinding wheel are moved by rotation of the sleeve.

In testimony whereof I aix my signature.

HENRY KOSMOS. 

